Patents by Inventor Masatsune Shigematsu

Masatsune Shigematsu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for handwashing socks or stockings
    Patent number: 4224195
    Abstract: A process for handwashing socks or stockings which utilizes a detergent composition having, as effective components, an ethylene oxide adduct of a secondary alcohol, a sulfuric ester salt of an ethylene oxide adduct of a secondary alcohol, and an amphoteric surfactant is described.
    Type: Grant
    Filed: July 11, 1978
    Date of Patent: September 23, 1980
    Assignee: Kabushiki Kaisha Tsumura Jutendo
    Inventors: Yoshimi Kawasaki, Izumi Imaseki, Satoshi Hirano, Katsuhiko Amano, Masatsune Shigematsu